Effect of prenatal exposure to oestrogen on quality of semen: comparison of twins and singleton brothers

The decline in sperm count and increase in disorders of the male reproductive tract may be due to high concentrations of prenatal exposure to oestrogens.1-2 As the concentration of free oestrogens in plasma is much greater in twin pregnancies from the first weeks of gestation, and greater for dizygo...

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Published in:BMJ 2002-08, Vol.325 (7358), p.252-253
Main Authors: Storgaard, Lone, Peter Bonde, Jens, Ernst, Erik, Yding Andersen, Claus, Ohm Kyvik, Kirsten, Olsen, J⊘rn
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Body fluids
Brothers
Diseases of mother, fetus and pregnancy
Environmental health
Estrogens
Estrogens - blood
Estrogens - physiology
Female
Fraternal twins
Gynecology. Andrology. Obstetrics
Hormones
Humans
Identical twins
Male
Medical sciences
Middle Aged
Pregnancy
Pregnancy. Fetus. Placenta
Prenatal development
Prenatal exposure
Prenatal Exposure Delayed Effects
Semen
Semen - chemistry
Sex hormones
Siblings
Sperm Count
Spermatozoa
Spermatozoa - chemistry
Twins
Twins, Dizygotic
Twins, Monozygotic
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container_end_page 253
container_issue 7358
container_start_page 252
container_title BMJ
container_volume 325
creator Storgaard, Lone
Peter Bonde, Jens
Ernst, Erik
Yding Andersen, Claus
Ohm Kyvik, Kirsten
Olsen, J⊘rn
description The decline in sperm count and increase in disorders of the male reproductive tract may be due to high concentrations of prenatal exposure to oestrogens.1-2 As the concentration of free oestrogens in plasma is much greater in twin pregnancies from the first weeks of gestation, and greater for dizygotic twins than monozygotic twins,3-4 we studied sperm count in twins and singleton brothers to see if twin brothers have lower sperm counts and if the lowest values are for dizygotic twins.
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identifier ISSN: 0959-8138
ispartof BMJ, 2002-08, Vol.325 (7358), p.252-253
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source Applied Social Sciences Index & Abstracts (ASSIA); JSTOR Archival Journals and Primary Sources Collection; British Medical Journals Online Archive (BMJ)
subjects Adult
Biological and medical sciences
Body fluids
Brothers
Diseases of mother, fetus and pregnancy
Environmental health
Estrogens
Estrogens - blood
Estrogens - physiology
Female
Fraternal twins
Gynecology. Andrology. Obstetrics
Hormones
Humans
Identical twins
Male
Medical sciences
Middle Aged
Pregnancy
Pregnancy. Fetus. Placenta
Prenatal development
Prenatal exposure
Prenatal Exposure Delayed Effects
Semen
Semen - chemistry
Sex hormones
Siblings
Sperm Count
Spermatozoa
Spermatozoa - chemistry
Twins
Twins, Dizygotic
Twins, Monozygotic
title Effect of prenatal exposure to oestrogen on quality of semen: comparison of twins and singleton brothers
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